Highly Inflationary Accounting for Venezuelan Operations (Net Charge Recorded in the Consolidated Income Statement Line Items) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2010	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Cost of products sold		$ 14,694	$ 13,196	$ 12,695
Provision for income taxes		660	788	746
Net charge	96
Highly Inflationary Accounting for Venezuelan Operations [Member]
Cost of products sold			19
Provision for income taxes			(2)
Net charge			$ 96